CVE-2026-76519Vulnerability
Cisco Secure Email Gateway Relative Path Traversal Vulnerability
Reported by 11 independent sources · first reported by CISA advisories · last reported
Last reported 5 days ago
Fix due 17 Oct 2026
Used by ransomware: not knownCISA KEV catalogue
higher than 75% of CVEsFIRST EPSS, as of 23 Oct 2026
What the reports say
15 reports, newest first · the exact sentence from each-
⚡ Weekly Recap: 98 Zero-Days, Rogue AI Agents, $100M Crypto Theft, 700 Supermarkets Hit and More“…-2026-93635, CVE-2026-73571, CVE-2026-10631, CVE-2026-50055 (Zimbra Collaboration Suite), CVE-2026-0322 (Palo Alto Networks PAN-OS), CVE-2026-76519 (Cisco Secure Email Gateway), CVE-2026-110447 (Collabora Online - Built-in CODE Server app), CVE-2026-39949 (Cacti), CVE-2026-0702 (…”
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Bulletin d'actualité CERTFR-2026-ACT-044 (19 octobre 2026)“CVE-2026-76519”
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Risky Bulletin: Russia arrests DataSuckers hacking group“[CVE-2026-76519]”
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U.S. CISA adds Palo Alto Networks PAN-OS, Ahsay AhsayCBS, and Cisco Secure Email Gateway flaws to its Known Exploited Vulnerabilities catalog“CVE-2026-76519 Cisco Secure Email Gateway Relative Path Traversal Vulnerability”
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Cisco Secure Email & PAN-OS Zero-Days Exploited“CVE-2026-76519 affects Cisco Secure Email Gateway and can be exploited remotely without authentication through malicious email attachments.”
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CISA flags exploited flaws in Palo Alto, Cisco and Ahsay products“CVE-2026-76519, a critical relative path traversal vulnerability in Cisco Secure Email Gateway (SEG)”
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Cisco Urges Customers to Patch Email Gateway Flaw and Check for Compromise“Cisco confirmed this week that threat actors are exploiting a critical vulnerability in Cisco Secure Email Gateway, tracked as CVE-2026-76519 with a CVSS score of 9.8.”
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Múltiples vulnerabilidades en productos de Cisco“La vulnerabilidad CVE-2026-76519 afecta únicamente a Cisco Secure Email Gateway cuando el servicio File Reputation está habilitado y utiliza una versión de Content Scanner Tools anterior a la 25.3.0.5525.”
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Cisco Warns of Exploited Secure Email Gateway Vulnerability“Tracked as CVE-2026-76519 (CVSS score of 9.8/10), the security defect impacts the Advanced Malware Protection (AMP) feature of the appliance and could allow remote, unauthenticated attackers to write arbitrary files on the operating system.”
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Palo Alto Networks Patches PAN-OS Authenticated RCE Flaw Amid Active Exploitation“The disclosure comes as Cisco warned that threat actors are exploiting a critical flaw in Cisco Secure Email Gateway (CVE-2026-76519, CVSS score: 9.8) that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.”
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Vulnérabilité dans Cisco AsyncOS Software pour Secure Email Gateway (15 octobre 2026)“Cisco indique que la vulnérabilité CVE-2026-76519 est activement exploitée.”
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Cisco security advisory (AV26-1042)“Cisco has indicated that CVE-2026-76519 is being exploited in the wild.”
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Cisco Warns of Active Attacks Exploiting New Critical Secure Email Gateway Vulnerability“Cisco found the flaw, tracked as CVE-2026-76519 (CVSS score: 9.8), in its own internal security scanning and became aware of the attacks in October.”
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Cisco Secure Email Gateway Arbitrary File Write Vulnerability“CVE-2026-76519”
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CISA Adds Four Known Exploited Vulnerabilities to Catalog“CVE-2026-76519 Cisco Secure Email Gateway Relative Path Traversal Vulnerability”
Indicators reported together
named in the same reports- 66.42.72[.]14in 2 reports
- 208.83.239[.]114in 2 reports
- 149.248.47[.]234in 2 reports
Copy these 3 indicators · defanged
Also named with it: CVE-2026-0322, CVE-2026-105133, CVE-2026-105134, CVE-2026-76461, CVE-2026-76440, CVE-2026-20353, CVE-2026-76443, CVE-2026-76441, CVE-2026-97229, CVE-2026-104935, CVE-2026-96951, CVE-2026-110447, CVE-2026-102764, CVE-2026-34073, CVE-2021-36260, CVE-2026-83498, CVE-2026-74580
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